America is huge and lots of it isn't densely populated.

Yeah but we commute by car way more. We used to have way more railroads and public transit in the US.

Hence the claim it’s designed for cars

Most of the driving is done where most of the people live. In those huge sparsely populated areas, you can stand next to an road all day and see only a few cars. Even on the interstates, it's not uncommon to be driving along without another car in sight on either horizon.

American roads could also be a lot safer.

https://www.fastcompany.com/90771003/american-roads-are-desi...